English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/218048
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Fate of pollutant components during chemical looping combustion of coal

AuthorsMendiara, Teresa; Izquierdo Pantoja, María Teresa ; Abad Secades, Alberto ; Diego Poza, Luis F. de ; García Labiano, Francisco ; Gayán Sanz, Pilar ; Adánez Elorza, Juan
KeywordsChemical Looping Combustion
Capture CO2
Issue Date12-May-2013
CitationCCT2013 (2013)
AbstractThe recently developed Chemical Looping Combustion technology (CLC) is nowadays considered an interesting option to capture CO2 at low cost in fossil fuelled power plants. In this technology, the oxygen needed for combustion is supplied by an oxygen carrier, normally a metal oxide, avoiding the mixture of the fuel and air. In the past years, significant advances have been achieved in the combustion of both gaseous and solid fuels. Nevertheless, pollutant emission from CLC systems has received little attention. This paper focuses on the study of sulphur and nitrogen emissions in the combustion of a lignite in a 500 Wth CLC unit. Ilmenite was used as oxygen carrier, as it is one of the most common materials used for CLC of solid fuels. Emissions from both fuel and air reactors were studied. The main sulphur species detected in the fuel reactor were H2S and SO2. The amount and proportion depended on the temperature of the fuel reactor. At high temperatures, low H2S/SO2 molar ratios were observed. Regarding nitrogen emissions, no NH3, HCN or N2O were registered in the fuel reactor. N2 was the major product from fuel-N originated in the fuel reactor, together with small amounts of NO and NO2. In the air reactor, sulphur and nitrogen were released from unconverted char as SO2 and NO, respectively.
Description6 figures, 2 tables.-- Work presented at the 6th International Conference on Clean Coal Technologies, CCT2013 in Thessaloniki, Greece. 12-16 May 2013.
Appears in Collections:(ICB) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
CCT2013_Mendiara et al.pdfComunicación de Congreso271,75 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.